Abstract: The work vehicle includes a vehicle body provided with a travel device; a prime mover provided in the vehicle body; a transmission device capable of speed-changing a driving force from the prime mover and transmitting the driving force to the travel device; a transmission case housing the transmission device and being filled with lubricating oil; and a controller capable of switching between a warm-up operation mode in which a gear of the transmission device is rotated in a state in which transmission of power from the transmission device to the travel device is blocked and a travel operation mode in which the gear is rotated in a state in which the power is transmitted from the transmission device to the travel device.

Abstract: In response to a request from a user, multiple reply mails are accessed and a changed portion for each of the reply mails is determined. Here, when the reply mail has a quotation from a past mail in the body and when the quotation includes newly-added information, a part where the information is added is determined as the changed portion. Otherwise, an original reply part in the body of the current mail is determined as the changed portion. Then, schedule information on a schedule is extracted from the changed portion. Based on the schedule information, summary information including a schedule of each person is created.

Abstract: In response to a request from a user, multiple reply mails are accessed and a changed portion for each of the reply mails is determined. Here, when the reply mail has a quotation from a past mail in the body and when the quotation includes newly-added information, a part where the information is added is determined as the changed portion. Otherwise, an original reply part in the body of the current mail is determined as the changed portion. Then, schedule information on a schedule is extracted from the changed portion. Based on the schedule information, summary information including a schedule of each person is created.